EP0227487B1 - Composition résineuse photosensible positive - Google Patents

Composition résineuse photosensible positive Download PDF

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Publication number
EP0227487B1
EP0227487B1 EP86310187A EP86310187A EP0227487B1 EP 0227487 B1 EP0227487 B1 EP 0227487B1 EP 86310187 A EP86310187 A EP 86310187A EP 86310187 A EP86310187 A EP 86310187A EP 0227487 B1 EP0227487 B1 EP 0227487B1
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EP
European Patent Office
Prior art keywords
groups
naphthoquinonediazide
formula
sulfonic acid
positive type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86310187A
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German (de)
English (en)
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EP0227487A3 (en
EP0227487A2 (fr
Inventor
Yoshihiro Hosaka
Ikuo Nozue
Masashige Takatori
Yoshiyuki Harita
Kiyoshi Honda
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JSR Corp
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Japan Synthetic Rubber Co Ltd
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Priority claimed from JP29665385A external-priority patent/JPS62153950A/ja
Priority claimed from JP61015333A external-priority patent/JPH0654385B2/ja
Application filed by Japan Synthetic Rubber Co Ltd filed Critical Japan Synthetic Rubber Co Ltd
Publication of EP0227487A2 publication Critical patent/EP0227487A2/fr
Publication of EP0227487A3 publication Critical patent/EP0227487A3/en
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Publication of EP0227487B1 publication Critical patent/EP0227487B1/fr
Expired legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/022—Quinonediazides
    • G03F7/023—Macromolecular quinonediazides; Macromolecular additives, e.g. binders
    • G03F7/0233—Macromolecular quinonediazides; Macromolecular additives, e.g. binders characterised by the polymeric binders or the macromolecular additives other than the macromolecular quinonediazides
    • G03F7/0236—Condensation products of carbonyl compounds and phenolic compounds, e.g. novolak resins

Definitions

  • This invention relates to a positive type radiation-sensitive resin composition, and more particularly to a positive type radiation-sensitive resin composition particularly suitable as a resist or producing integrated circuits, which composition is sensitive to radiations such as ultraviolet rays, far-ultraviolet rays, X-rays, electron beams, molecular beams, gamma-rays, synchrotron radiations, proton beams and the like.
  • radiations such as ultraviolet rays, far-ultraviolet rays, X-rays, electron beams, molecular beams, gamma-rays, synchrotron radiations, proton beams and the like.
  • JP-A-5984238 discloses a photosensitive novolak resin composition for a lithographic printing plate.
  • the composition is high in sensitivity and leaves the non-image part of the printing plate clean after development.
  • EP-A-0054258 discloses a photosensitive novolak resin composition which has excellent resistance to chemicals, a long press-life, excellent alkali-solubility and difficult to form scumming.
  • the resists which have heretofore been used in the production of integrated circuits include negative type resists comprising a cyclized rubber and a bisazide compound, and positive type resists comprising an alkali-soluble novolac resin and a 1,2-quinonediazide compound.
  • negative type resist comprising a cyclized rubber and a bisazide compound
  • positive type resists comprising an alkali-soluble novolac resin and a 1,2-quinonediazide compound.
  • the bisazide compound liberates a nitrogen to become a nitrene, which three-dimensionally crosslinks the cyclized rubber.
  • the light-irradiated portions are not completely cured, and therefore, the resist pattern is greatly swollen in a developing solution consisting of an organic solvent, whereby the resolution of tie resist pattern becomes low. This is disadvantageous.
  • the positive type resist comprises an alkali-soluble novolac resin and an alkali-insoluble 1,2-quinonediazide compound and hence is difficult to dissolve in a developing solution consisting of an aqueous alkaline solution and is hardly swollen. Accordingly, the 1,2-quinonediazide compound contained in the light-irradiated portion is converted into a carboxylic acid. Therefore, when the irradiated resist is developed with a developing solution consisting of an aqueous alkaline solution, the light-unirradated portions which form a resist pattern are very small in solubility change, and therefore, a resist pattern is obtained which is faithful to the mask and has a high resolution. Thus, in recent years during which higher integration of integrated circuits has been required, such positive type resists having an excellent resolution have often been used.
  • this dry etching method requires etching the substrate with reactive ions. Therefore, the temperature of the substrate rises during the etching, and the resist pattern undergoes thermal deformation to reduce the dimension accuracy. In addition, highly reactive fluorine ions, chlorine ions and the like impair the resist pattern. This is disadvantageous.
  • novolac resin-based positive type resists have heretofore been evaluated to be resistant to such severe dry etching as compared with other resists. However, they cannot be said to be fully satisfactory.
  • An object of this invention is to provide a positive type radiation-sensitive resin composition having an improved dry etching resistance and also having an improved resolution and thermal resistance.
  • a positive type radiation-sensitive resin composition which comprises 100 parts by weight of an alkali-soluble resin and 5 to 100 parts by weight of a 1,2-quinonediazide compound represented by the formula (I): wherein R1 to R10, which may be the same or different, represent hydroxyl groups, 1,2-quinonediazidesulfonyl groups, hydrogen atoms, alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, halogen atoms, cyano groups, nitro groups, acyl groups having 2 to 5 carbon atoms and aralkyl groups having 7 to 9 carbon atoms, and wherein the number (n) of the hydroxyl groups in the formula (I) is O or an integer of 1 to 9, the number (m) of the 1,2-quinonediazidesulfonyl groups in the formula (I) is an integer of 1 to 10 and 5 ⁇ n + m ⁇ 10.
  • the 1,2-quinonediazidesulfonyl groups include, for example, 1,2-naphthoquinonediazide-5-sulfonyl, 1,2-naphthoquinonediazide-4-sulfonyl and 1,2-benzoquinonediazide-4-sulfonyl;
  • the alkyl groups having 1 to 4 carbon atoms include, for example, methyl, ethyl, propyl and butyl;
  • the alkoxy groups having 1 to 4 carbon atoms include, for example, methoxy, ethoxy, propoxy and butoxy;
  • the halogen atoms include, for example, chlorine and bromine;
  • the acyl groups having 2 to 5 carbon atoms include, for example, acetyl, propyonyl, butyryl and valeryl;
  • the aralkyl groups having 7 to 9 carbon atoms include, for example, benzyl, phenethyl and phen
  • the 1,2-quinonediazide compounds represented by the formula (I) used as a photosensitizer in the Composition are produced by reacting a 1,2-quinonediazide with a polyhydroxy compound represented by the formula (II): wherein R11 to R20 which may be the same or different, represent hydroxyl groups, hydrogen atoms, alkyl groups having 1 to 4 carbon atoms, alkoxy groups having 1 to 4 carbon atoms, halogen atoms, cyano groups, nitro groups, acyl groups having 2 to 5 carbon atoms or aralkyl groups having 7 to 9 carbon atoms, and the number (l) of the hydroxyl groups in the formula (II) is 5 ⁇ l ⁇ 10, in the presence of a basic catalyst.
  • the polyhydroxy compound represented by the formula (II) includes, for example, 2,3,4,2',4'-pentahydroxybenzophenone, 2,3,4,2',5'-pentahydroxybenozophenone, 2,3,4,2',6'-pentahydroxybenzophenone, 2,3,4,3',4'-pentahydroxybenzophenone, 2,3,4,3',5'-pentahydroxybenzophenone, 2,3,4,2',3',4'-hexahydroxybenzophenone, 2,3,4,3',4',5'-hexahydroxybenzophenone, 2,3,4,2',4',6'-hexahydroxybenzophenone, 2,4,6,2',4'-pentahydroxybenzophenone, 2,4,6,2',5'-pentahydroxybenzophenone, 2,4,6,2',6'-pentahydroxybenzophenone, 2,4,6,3',4'-pentahydroxybenzophenone, 2,4,6,2',5'-pent
  • 1,2-quinonediazide include, for example, 1,2-quinonediazidesulfonyl halides such as 1,2-naphthoquinonediazide-5-sulfonyl chloride, 1,2-napnthoquinonediazide-4-sulfonyl chloride, 1,2-benzoquinonediazide-4-sulfonyl chloride and the like. These 1,2-quinonediazides may be used alone or in admixture of two or more.
  • the amount of the 1,2-quinonediazide compound used based on the compound represented by the formula (II) is appropriately adjusted depending upon the number of the hydroxyl groups in the compound of the formula (II) and is usually 0.1 to 1 mole per mole of the hydroxyl group of the compound of the formula (II) though not critical.
  • the basic catalyst includes, for example, amines such as trimethylamine, triethylamine, tripropylamine, pyridine, tetramethylammonium hydroxide and the like and also inorganic alkalis such as sodium hydroxide, potassium hydroxide, sodium carbonate and the like.
  • amines such as trimethylamine, triethylamine, tripropylamine, pyridine, tetramethylammonium hydroxide and the like and also inorganic alkalis such as sodium hydroxide, potassium hydroxide, sodium carbonate and the like.
  • the amount of the basic catalyst used is usually 0.8 to 2 moles, preferably 1 to 1.5 moles, per mole of the 1,2-quinonediazide compound.
  • a reaction medium which includes, for example, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone and the like; cyclic ethers such as dioxane, tetrahydrofuran and the like; cyclic ketones such as cyclopentanone, cyclohexanone and the like; amides such as N,N-dimethylformamide, N,N-dimethylacetamide and the like; esters such as ⁇ -butyrolactone, ethylene carbonate, propylene carbonate and the like; pyrrolidone; N-methylpyrrolidone; and water.
  • the amount of the reaction medium used is usually 100 to 1,000 parts by weight per 100 parts by weight of the compound of formula (II).
  • the reaction temperature is usually -30 to +60°C, preferably 0 to 40°C in the above reaction.
  • the compound of the formula (I) used in the Composition includes, for example, 2,3,4,2',4'-pentahydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonic acid ester, 2,3,4,2',5',-pentahydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonic acid ester, 2,3,4,2',6'-pentahydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonic acid ester, 2,3,4,3',4'-pentahydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonic acid ester, 2,3,4,3',5'-pentahydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonic acid ester, 2,3,4,2',3',4'-hexahydroxybenzophenone-1,2-naphthoquino
  • the amount of the compound represented by the formula (I) contained is 5 to 100 parts by weight, preferably 10 to 50 parts by weight, per 100 parts by weight of the alkali-soluble resin.
  • this amount is less than 5 parts by weight, the amount of a carboxylic acid produced owing to the 1,2-quinonediazide compound absorbing radiation becomes small, and hence, patterning becomes difficult.
  • the amount is more than 100 parts by weight, the irradiation with a radiation for a short period of time does not enable the whole of the 1,2-quinonediazide compound to be decomposed, and the development with a developing solution consisting of an aqueous alkaline solution becomes difficult.
  • the alkali-soluble resin used in the Composition includes, for example, alkali-soluble novolac resins.
  • This alkali-soluble novolac resin is prepared by addition -condensing phenols with carbonyl compounds in the presence of an acid catalyst.
  • the alkali-soluble resins used in the Composition include alkali-soluble novolac resins, and in addition thereto, for example, polyhydroxystyrene, its derivatives, styrene-maleic anhydride copolymer, polyvinyl hydroxy-benzoate, carboxyl-containing (meth)acrylate resins and the like. These alkali-soluble resins may be used alone or in admixture of two or more.
  • a sensitizer may be contained in order to increase the sensitivity as resist.
  • the sensitizer includes, for example, 2H-pyrido[3,2-b]-1,4-oxazin-3-[4H]-ones, 10H-pyrido[3,2-b]-[1,4]-benzothiazines, urazoles, hydantoins, barbituric acids, glycine anhydrides, 1-hydroxybenzotriazoles, alloxans, maleimides and further sensitizers described in Japanese Patent Publication Nos. 12,242/73 and 35,402/73, Japanese Patent Application Kokai (Laid-open) Nos. 37,641/83 and 149,042/83 and the like.
  • the amount of the sensitizer contained is usually not more than 100 parts by weight, preferably 4 to 60 parts by weight, per 100 parts by weight of the 1,2-quinonediazide compound.
  • the Composition may contain a surface active agent and the like for improving coatability, for example, striation, and the developability of the radiation-irradiated portion after the formation of the dry coating.
  • the surface active agent includes nonionic surfactants, for example, polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether and the like; polyoxyethylene alkyl phenol ethers such as polyoxyethylene octyl phenol ether, polyoxyethylene nonyl phenol ether and the like; polyethylene glycol difatty acid esters such as polyethylene glycol dilaurate, polyethylene glycol distearate and the like; fluorine-containing surfactants such as F Top EF 301, EF 303 and EF 352 (these are products of Shin Akita Kasei K.K.), Megafac F 171 and F 173 (these are products of DANINIPPON INK & CHEMICALS),
  • organosiloxane polymer KP 341 (a product of Shin-Etsu Chemical Co., Ltd.); and acrylic or methacrylic (co)polymer Polyflow No. 75 and No. 95 (these are products of Kyoeisha Yushikagaku Kogyo K.K.) and the like.
  • the amount of these surface active agents contained is usually not more than 2 parts by weight, preferably not more than 1 part by weight, per 100 parts by weight of the solids content of the Composition
  • the Composition may contain a coloring agent for visualizing the latent image in the radiation-irradiated portions and for reducing the adverse effect of halation during irradiation with a radiation, or may contain an adhering aid for improving the adhesiveness to substrate.
  • the Composition may, if necessary, contain a storage stabilizer, anti-foaming agent and the like.
  • the Composition is prepared by dissolving an alkali-soluble resin, a 1,2-quinonediazide compound and various compounding agents in the necessary amounts in a solvent and filtering the resulting solution through a filter having a pore diameter of, for example, about 0.2 ⁇ m.
  • the solvent used in this case includes, for example, glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether and the like; cellosolve esters such as methyl cellosolve acetate, ethyl cellosolve acetate and the like; ketones such as methyl ethyl ketone, cyclohexanone and the like; and esters such as ethyl acetate, butyl acetate, methyl lactate, ethyl lactate and the like. These solvents may be used alone or in admixture of two or more.
  • glycol ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether and the like
  • cellosolve esters such as methyl cellosolve acetate, ethyl cellosolve acetate and the like
  • ketones such as methyl ethyl ketone, cyclohexanone and the like
  • a high boiling solvent may be added such as an aromatic hydrocarbon, for example, toluene, xylene or the like; an ether, for example, benzyl ethyl ether, dihexyl ether or the like; a glycol ether, for example, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether or the like; a ketone, for example, acetonylacetone, isophorone or the like; a fatty acid, for example, caproic acid, caprylic acid or the like; an alcohol, for example, 1-octanol, 1-nonanol, benzyl alcohol or the like; an ester, for example, benzyl acetate, ethyl benzoate, diethyl oxalate, diethyl maleate, ethylene carbonate, propylene carbonate, phenyl cellosolve acetate or the like; or a lactone, for example, ⁇ -
  • a 5 to 50% by weight solution of the Composition is applied to the substrate by a spin coating, flow-coating, roll-coating or the like.
  • the developing solution for the Composition is an aqueous alkaline solution prepared by dissolving in water an inorganic alkali such as sodidum hydroxide, potassium hydroxide, sodium carbonate, sodium silicate, sodium meta-silicate, ammonia water or the like; a primary amine such as ethylamine, n-propylamine or the like; a secondary amine such as diethylamine, di-n-propylamine or the like; a tertiary amine such as triethylamine, methyldiethylamine or the like; an alcoholamine such as dimethylethanolamine, triethanolamine or the like; a quaternary ammonium salt such as tetramethylammonium hydroxide, tetramethylammonium hydroxide or the like or a cyclic amine such as pyrole, piperidine, 1,8-diazabicyclo(5,4,0)-7-undecene, 1,5-diazabicyclo(4,3,
  • the developing solution may further contain an appropriate amount of an aqueous organic solvent, for example, an alcohol such as methanol, ethanol or the like, and a surface active agent.
  • an aqueous organic solvent for example, an alcohol such as methanol, ethanol or the like, and a surface active agent.
  • the positive type radiation-sensitive resin composition of this invention is excellent in dry-etching resistance, resolution and heat resistance, and particularly useful as positive type resists for producing integrated circuits in which a resist pattern is formed by irradiation with a radiation such as a visible light, a ultraviolet ray, a far-ultraviolet ray, an X-ray, a molecular beam, an ion ray, an electron beam, a ⁇ -ray or the like, and also useful as a positive type resist for producing a mask.
  • a radiation such as a visible light, a ultraviolet ray, a far-ultraviolet ray, an X-ray, a molecular beam, an ion ray, an electron beam, a ⁇ -ray or the like, and also useful as a positive type resist for producing a mask.
  • the number of the 1,2-quinonediazidesulfonyl groups in 1,2-quinonediazide compounds represented by the formula (I) Used is an average value of the reaction product.
  • the resist layer was exposed to light through a pattern mask using a stepper for 0.45 seconds, and then developed with a 2.2% by weight aqueous TMA solution for 60 seconds.
  • the resist pattern thus obtained was observed by means of a scanning electron microscope to find that no undeveloped portion, namely no developing residue was recognized in the adhesion portion between the substrate and the resist pattern and that a resist pattern having a line width of 0.8 ⁇ m was resolved.
  • Example 1 (2) The same procedure as in Example 1 (2) was repeated, except that 2,3,4-trihydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonic acid triester was substituted for the 2,3,4,2',6'-pentahydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonic acid triester to prepare a solution of a resist composition.
  • this solution was applied to a silicon wafer having a silicon oxide film and then exposed to light for 65 seconds through a pattern mask using a stepper and thereafter developed with a 2.4% by weight aqueous TMA solution.
  • the resist pattern thus obtained was observed by means of a scanning electron microscope to find that resolution was possible till a line width of 1.1 ⁇ m, but a developing residue was recognised in the portion at which the resist pattern contacted the substrate.
  • Example 1 (1) 2,4,6,3',4',5'-hexahydroxybenzophenone, 2,3,4,5,4'-Pentahydroxybenzophenone or 2,3,4,3',4',5'-hexahydroxy-5-methylbenzophenone was reacted with NQD, triethylamine and dioxane to synthesize the 1,2-quinonediazide compounds shown in Table 1. Subsequently, the same procedure as in Example 1 (2) was repeated, except that these 1,2-quinonediazide compounds and an alkali-soluble novolac resin produced by polycondensing a cresol mixture of m-cresol/p-cresol (4/6 by mole) with formaldehyde were used to prepare solutions of the Composition.
  • Example 1 (2) In the same manner as in Example 1 (2), the solutions thus obtained were applied to a silicon wafer having a silicon oxide film and exposed to light for the periods of time shown in Table 1 through a pattern mask using a stepper, and then developed with a 2.4% by weight aqueous TMA solution.
  • Example 1 (2) The same procedure as in Example 1 (2) was repeated, except that the alkali-soluble novolac resin obtained by polycondensing a cresol mixture of m-cresol/p-cresol (6/4 by mole) with formaline was replaced with the alkali-soluble novolac resins produced by polycondensing a cresol mixture shown in Table 2 with formaline, to prepare solutions of the Composition of this invention.
  • the solutions thus obtained were applied to a silicon wafer having a silicon oxide film and then exposed to light through a pattern mask for the period of time shown in Table 2 using a stepper, and then developed with a 2.4% by weight aqueous TMA solution.
  • HHBP 2,3,4,3',4',5'-hexahydroxybenzophenone
  • NQD 2,3,4,3',4',5'-hexahydroxybenzophenone
  • Table 3 2,3,4,3',4',5'-hexahydroxybenzophenone
  • Example 1 (2) the same procedure as in Example 1 (2) was repeated, except that the 1,2-quinonediazide compounds thus obtained and alkalisoluble novolac resins produced by polycondensing a cresol mixture of m-cresol/p-cresol (4/6 by mole) with formaline were used to prepare solutions of the Composition of this invention.
  • the solutions thus obtained were applied to a silicon wafer having a silicon oxide film and then exposed to light for the period of time shown in Table 3 through a pattern mask using a stepper, and then developed with on aqueous TMA solution having a concentration as shown in Table 3.
  • the resist patterns thus obtained were observed by means of a scanning electron microscope to find that the resolutions of the resist patterns were high as shown in Table 3, and no developing residue was recognised.

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Materials For Photolithography (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)

Claims (10)

  1. Composition résineuse positivement sensible aux radiations qui comprend 100 parties en poids d'une résine soluble dans les alcalis et 5 à 100 parties en poids d'un composé 1,2-quinonediazide représenté par la formule (I):
    Figure imgb0006
        dans laquelle R¹ à R¹⁰, qui peuvent être identiques ou différents, représentent des groupements hydroxyles, des groupements 1,2-quinonediazidesulfonyles, des atomes d'hydrogène, des groupements alkyles ayant de 1 à 4 atomes de carbone, des groupements alcoxy ayant de 1 à 4 atomes de carbone, des atomes d'halogènes, des groupements nitriles, des groupements nitrés, des groupements acyles ayant de 2 à 5 atomes de carbone et des groupements aralkyles ayant de 7 à 9 atomes de carbone et où le nombre (n) de groupements hydroxyles dans la formule (I) est O ou un nombre entier de 1 à 9, le nombre (m) de groupements 1,2-quinonediazidesulfonyles dans la formule (I) est un nombre entier de 1 à 10 et 5 ≦ n + m ≦ 10.
  2. Composition résineuse positivement sensible aux radiations suivant la revendication 1, dans laquelle R¹ à R¹⁰ dans la formule (I) sont des groupements hydroxyles, des groupements 1,2-naphthoquinonediazide-5-sulfonyles,  des atomes d'hydrogène ou des groupements alkyles ayant 1 - 4 atomes de carbone, le nombre (n) de groupements hydroxyles dans la formule (I) est O ou un nombre entier de 1 à 9, le nombre (m) de groupements 1,2-quinonediazidesulfonyles dans la formule (I) est un nombre entier de 1 à 10 et 5 ≦ n + m ≦ 10.
  3. Composition résineuse positivement sensible aux radiations suivant la revendication 1, dans laquelle le groupement 1,2-quinonediazidesulfonyle pour R¹ à R¹⁰ dans la formule (I) est choisi dans le groupe constitué par le groupement 1,2-napthoquinonediazide-5-sulfonyle, le groupement 1,2-naphthoquinonediazide-4-sulfonyle et le groupement 1,2-benzoquinonediazide-4-sulfonyle.
  4. Composition résineuse positivement sensible aux radiations suivant la revendication 1, dans laquelle le groupement 1,2-quinonediazidesulfonyle pour R¹ à R¹⁰ dans la formule (I) est un groupement 1,2-naphthoquinonediazide-5-sulfonyle.
  5. Composition résineuse positivement sensible aux radiations suivant la revendication 1, dans laquelle le composé 1,2-quinonediazide représenté par la formule (I) est produit en faisant réagir un 1,2-quinonediazide avec un composé polyhydroxylé représenté par la formule (II):
    Figure imgb0007
        dans laquelle R¹¹ à R²⁰, qui peuvent être identiques ou différents représentent des groupements hydroxyles, des atomes d'hydrogène, des groupements alkyles ayant de 1 à 4 atomes de carbone, des atomes d'halogènes, des groupements nitriles, des groupements nitrés, des groupements acyles ayant de 2 à 5 atomes de carbone ou des groupements aralkyles ayant de 7 à 9 atomes de carbone et le nombre (ℓ) de groupements hydroxyles dans la formule (II) est 5 ≦ ℓ ≦ 10, en présence d'un catalyseur basique.
  6. Composition résineuse positivement sensible aux radiations suivant la revendication 5, dans laquelle la quantité de 1,2-quinonediazide utilisée est de 0.1 à 1 mole par équivalent de groupement hydroxyle dans le composé de la formule (II).
  7. Composition résineuse positivement, sensible aux radiations telle que revendiquée dans la revendication 1, 2, 3, 4, 5 ou 6 pour la production d'un circuit intégré, dans laquelle la résine soluble dans les alcalis est une résine préparée par polycondensation d'un mélange de phénols constitué essentiellement de 20-30 moles % de résorcinol et de 80-70 moles % d'au moins un m-crésol ou 3,5-xylénol ou des deux, avec de l'acétaldéhyde.
  8. Composition résineuse positivement sensible aux radiations suivant la revendication 7, dans laquelle le mélange de phénols consiste essentiellement en 20-25 moles % de résorcinol et 80-75 moles % de m-crésol et de 3,5-xylénol, dans lequel le rapport molaire du m-crésol sur le 3,5-xylénol est de 64-49/16-26.
  9. Composition résineuse positivement sensible aux radiations telle que revendiquée dans la revendication 1, 2, 3, 4, 5 ou 6 pour la production d'un circuit intégré dans laquelle la résine soluble dans les alcalis est une résine préparée par la polycondensation d'un mélange de phénols constitué essentiellement de 100-30 moles % de pyrogallol et de 0-70 moles % d'au moins un m-crésol ou p-crésol ou des deux, avec au moins un membre choisi parmi le groupe constitué par le formaldéhyde, l'acétaldéhyde et l'acroléine.
  10. Composition résineuse positivement sensible aux radiations telle que revendiquée dans les revendications 1, 2, 3, 4, 5 ou 6 pour la production d'un circuit intégré, dans laquelle la résine soluble dans les alcalis est une résine préparée par la polycondensation d'un mélange de phénols constitué essentiellement de 30-70 moles % de phloroglucinol et de 70-30 moles % d'au moins un p-crésol ou 2,5-xylénol ou des deux, avec au moins un composé du groupe constitué par le benzaldéhyde et le p-hydroxybenzaldéhyde.
EP86310187A 1985-12-27 1986-12-29 Composition résineuse photosensible positive Expired EP0227487B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP29665385A JPS62153950A (ja) 1985-12-27 1985-12-27 ポジ型感放射線性樹脂組成物
JP296653/85 1985-12-27
JP15333/86 1986-01-27
JP61015333A JPH0654385B2 (ja) 1986-01-27 1986-01-27 ポジ型感放射線性樹脂組成物

Publications (3)

Publication Number Publication Date
EP0227487A2 EP0227487A2 (fr) 1987-07-01
EP0227487A3 EP0227487A3 (en) 1987-10-28
EP0227487B1 true EP0227487B1 (fr) 1992-07-15

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EP86310187A Expired EP0227487B1 (fr) 1985-12-27 1986-12-29 Composition résineuse photosensible positive

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US (1) US5087548A (fr)
EP (1) EP0227487B1 (fr)
DE (1) DE3686032T2 (fr)

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Also Published As

Publication number Publication date
DE3686032T2 (de) 1993-02-18
US5087548A (en) 1992-02-11
DE3686032D1 (de) 1992-08-20
EP0227487A3 (en) 1987-10-28
EP0227487A2 (fr) 1987-07-01

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